The Department of Highways has extended toll-free use of motorways M7 and M9, and the Don Mueang Tollway operator DMT has matched it, until 24.00 on Tuesday 29 September 2026. M6 (Bang Pa-In to Pak Chong, about 110 km) is also free until then, outside its usual Friday-Sunday free days. The extension is temporary: M6 reverts to Friday-Sunday free days from Friday 2 October. The M6 section is still under construction, so only 4-wheel cars are allowed and the speed limit is 80 km/h. For delivery or travel plans, use these routes to avoid flooded roads such as Phahon Yothin (Bang Pa-In to Saraburi) and Mittraphap (Saraburi to Kaeng Khoi), and check road conditions before leaving.